Django根据响应内容测试主页的html [英] Django testing the html of your homepage against the content of a response

问题描述

如果我有这样的测试...

If I have a test like so...

 def test_home_page_returns_correct_html(self):
        request = HttpRequest()
        response = home_page(request)
        expected_html = render_to_string('home.html', request=request)
        self.assertEqual(response.content.decode(), expected_html)

我在大括号中添加表格后，例如{{ form }}上述测试将失败，因为.html文件将不会仅响应形式呈现表单.因此导致断言不匹配.有没有办法解决这个问题，以便我仍然可以针对响应测试我的html?

As soon as I add a form in curly braces, e.g. {{ form }} The above test will fail as the .html file will not render the form only the response will. Thus causing the assertion to not match. Is there a way round this so that I can still test my html against the response?

推荐答案

您可以将表单实例传递给render_to_string函数:

You can pass a form instance to the render_to_string function:

from django.template import RequestContext
from django.template.loader import render_to_string

form = ModelForm()
context = RequestContext(request, {'form': form})
expected_html = render_to_string('home.html', context)

---

通常，我要做的就是将这种测试分为其他几个测试，如下所示:

---

Usually what I do is splitting this kind of test into several other tests, like this:

使用from django.test import TestCase

def setUp(self):
    self.user = User.objects.create_user('john', '[e-mail]', '123')
    self.client.login(username='john', password='123')
    self.response = self.client.get(r('home'))

首先测试使用了哪个模板:

First test which template was used:

def test_template(self):
    self.assertTemplateUsed(self.response, 'home.html')

测试表单:

def test_has_form(self):
    form = self.response.context['form']
    self.assertIsInstance(form, CreateModelForm)

然后我测试HTML的关键部分:

And then I test the key parts of the HTML:

def test_html(self):
    self.assertContains(self.response, '<form')
    self.assertContains(self.response, 'type="hidden"', 1)
    self.assertContains(self.response, 'type="text"', 2)
    self.assertContains(self.response, 'type="radio"', 3)
    self.assertContains(self.response, 'type="submit"', 1)

最后，如果渲染的模板具有csrf令牌:

Finally if the rendered template has a csrf token:

def test_csrf(self):
    self.assertContains(self.response, 'csrfmiddlewaretoken')

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